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1. 发明申请

US20170211923A1 OPTICAL POSITION-MEASURING DEVICE 审中-公开
公开(公告)号：US20170211923A1
公开(公告)日：2017-07-27
申请号：US15410806
申请日：2017-01-20
申请人： DR. JOHANNES HEIDENHAIN GmbH
发明人： Peter Speckbacher , Tobias Gruendl , Christian Baeuml , Josef Weidmann
IPC分类号： G01B9/02
CPC分类号： G01B9/02034 , G01B9/02017 , G01B2290/30 , G01B2290/65 , G01D5/38
摘要： An optical position-measuring device includes a scale and a scanning reticle, whose relative position is determinable in three linearly independent spatial directions using interfering light beams. A splitter grating is disposed on the scanning reticle and adapted to split light into sub-beams of different diffraction orders. An optical grating is disposed on the scale and adapted to further split the sub-beams and to recombine them after they have been reflected back from the scanning reticle. Grating fields configured as phase gratings are disposed on a side of the scanning reticle that faces the scale. The grating fields act as diffractive optics that influence the further split sub-beams. The grating fields have different step heights. An output grating is disposed on the scanning reticle and adapted to output, as interfering sub-beams, light that has been multiply reflected between the scale and the scanning reticle.

2. 发明申请

US20150201833A1 OPTICAL COHERENCE TOMOGRAPHY SYSTEM WITH MULTIPLE SAMPLE PATHS 有权
标题翻译：具有多个样本图的光学相干图像系统
公开(公告)号：US20150201833A1
公开(公告)日：2015-07-23
申请号：US14601945
申请日：2015-01-21
申请人： SANTEC CORPORATION
发明人： Changho Chong
IPC分类号： A61B3/10
CPC分类号： A61B3/102 , G01B9/02004 , G01B9/02017 , G01B9/02019 , G01B9/02021 , G01B9/02028 , G01B9/02091
摘要： Improved optical coherence tomography (OCT) imaging systems are generally described. In an example, an OCT imaging system includes a tunable laser source, an interferometer, a splitter, and a detector. The tunable laser source is configured to provide a wavelength-scanned beam. The interferometer is configured to split the wavelength-scanned beam into a reference beam and an object beam. The splitter is configured to split the object beam into a first path corresponding to an anterior chamber imaging component and a second path corresponding to a retinal imaging component. The detector is configured to detect a signal caused by interference between the reference beam and at least a portion of the object beam reflected from the eye.
摘要翻译：通常描述改进的光学相干断层扫描（OCT）成像系统。在一个示例中，OCT成像系统包括可调谐激光源，干涉仪，分离器和检测器。可调激光源被配置成提供波长扫描光束。干涉仪被配置为将波长扫描的光束分成参考光束和物体光束。分离器被配置为将物体光束分成对应于前房成像部件的第一路径和对应于视网膜成像部件的第二路径。检测器被配置为检测由参考光束与从眼睛反射的物体光束的至少一部分之间的干涉引起的信号。

3. 发明申请

US20180299255A1 INSPECTING A MULTILAYER SAMPLE 审中-公开
公开(公告)号：US20180299255A1
公开(公告)日：2018-10-18
申请号：US15486146
申请日：2017-04-12
申请人： Applejack 199 L.P.
发明人： WOJCIECH JAN WALECKI , ALEXANDER PRAVDIVTSEV
IPC分类号： G01B11/06 , G01B9/02
CPC分类号： G01B11/0675 , G01B9/02017 , G01B9/02044 , G01B2210/56 , G01B2290/25
摘要： Inspecting a multilayer sample. In one example embodiment, a method may include receiving, at a beam splitter, light and splitting the light into first and second portions; combining, at the beam splitter, the first portion of the light after being reflected from a multilayer sample and the second portion of the light after being reflected from a reflector; receiving, at a computer-controlled system for analyzing Fabry-Perot fringes, the combined light and spectrally analyzing the combined light to determine a value of a total power impinging a slit of the system for analyzing Fabry-Perot fringes; determining an optical path difference (OPD); recording an interferogram that plots the value versus the OPD for the OPD; performing the previous acts of the method one or more additional times with a different OPD; and using the interferogram for each of the different OPDs to determine the thicknesses and order of the layers of the multilayer sample.

4. 发明申请

US20110301455A1 OPTICAL TOMOGRAPHIC IMAGING APPARATUS 审中-公开
标题翻译：光学成像装置
公开(公告)号：US20110301455A1
公开(公告)日：2011-12-08
申请号：US13201724
申请日：2010-02-24
申请人： Yasuyuki Numajiri , Kazuro Yamada , Futoshi Hirose
发明人： Yasuyuki Numajiri , Kazuro Yamada , Futoshi Hirose
IPC分类号： A61B6/00
CPC分类号： G01B9/02091 , A61B3/102 , G01B9/02017 , G01B9/02027 , G01B9/02044 , G01B9/02048 , G01B9/02077 , G01B9/02087 , G01B2290/45
摘要： Provided is an optical tomographic imaging apparatus that, at imaging a tomographic image in an OCT system with a high lateral resolution, can more reduce blurring in the image due to movement of an object, including: a scanning device for scanning, on the object, a first irradiation beam having a large spot diameter and a second irradiation beam having a small spot diameter synchronized with each other, an image information acquiring device for acquiring first and second image information obtained with the irradiation beams, respectively, by scanning the first and second irradiation beams, and a position correcting device for identifying a position of the first image information based on reference image information acquired in advance, and, based on correlation of a positional relation between the first and second image information, correcting a position of the second image information by associating the position with the identified first image information's position.
摘要翻译：本发明提供一种光学断层图像摄像装置，其在以高横向分辨率对OCT系统中的断层摄影图像进行成像时，能够更加减少由于物体的移动引起的图像模糊，其特征在于，包括：扫描装置，具有大光斑直径的第一照射光束和具有彼此同步的小光点直径的第二照射光束，图像信息获取装置，用于分别通过扫描第一和第二光束获取第一和第二图像信息，照射光束，以及位置校正装置，用于基于预先获取的参考图像信息来识别第一图像信息的位置，并且基于第一和第二图像信息之间的位置关系的相关性，校正第二图像的位置通过将位置与所识别的第一图像信息的位置相关联来显示信息。

5. 发明申请

US20180242840A1 METHOD AND SYSTEM FOR PUPIL RETRO ILLUMINATION USING SAMPLE ARM OF OCT INTERFEROMETER 审中-公开
公开(公告)号：US20180242840A1
公开(公告)日：2018-08-30
申请号：US15908098
申请日：2018-02-28
申请人： AMO WaveFront Sciences, LLC
发明人： Richard J. Copland
IPC分类号： A61B3/10 , A61B5/00 , A61B3/00
CPC分类号： A61B3/102 , A61B3/0025 , A61B3/10 , A61B3/1005 , A61B3/101 , A61B3/107 , A61B3/14 , A61B5/0066 , G01B9/02017 , G01B9/02083
摘要： An optical measurement instrument includes optical coherence tomography (OCT) interferometer and a pupil retro illumination system which directs laser light onto the retina of an eye via the sample arm of the OCT interferometer. The laser light passes through an intraocular lens (IOL) implanted into the eye, and an iris camera captures an image of the eye from a portion of the light returned from the retina of the eye, the returned light also passing through the IOL. One or more fiducials of the IOL are detected from the captured image, and an angular orientation of the eye is ascertained from the one or more detected fiducials.

6. 发明申请

US20180165804A1 BOLT AXIAL TENSION MEASURING APPARATUS AND BOLT AXIAL TENSION MEASURING METHOD 审中-公开
公开(公告)号：US20180165804A1
公开(公告)日：2018-06-14
申请号：US15832854
申请日：2017-12-06
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Masahito SAKAKIBARA , Yuichi Hirano
IPC分类号： G06T7/00 , G01L5/24 , G01B9/02
CPC分类号： G06T7/0006 , G01B9/02 , G01B9/02017 , G01L5/24 , G06T7/00 , G06T2207/30164
摘要： At a first timing when a tightening machine temporarily tightens a bolt, a distance sensor acquires a first distance image. A distance sensor controller measures a first recess amount of the head of the bolt at the first timing by the first distance image. A manipulator controller is configured to change a relative posture of an image sensor relative to the head of the bolt in accordance with a rotation angle by which the bolt is rotated from the first timing to a second timing. The distance sensor acquires a second distance image at the second timing, and the distance sensor controller measures a second recess amount of the head of the bolt at the second timing by the second distance image, so as to measure an axial tension of the bolt by use of a difference between the first recess amount and the second recess amount.

7. 发明申请

US20190056214A1 SYSTEMS AND METHODS FOR IMPROVED OCT MEASUREMENTS 审中-公开
公开(公告)号：US20190056214A1
公开(公告)日：2019-02-21
申请号：US16075934
申请日：2017-02-10
申请人： Carl Zeiss Meditec, Inc. , Carl Zeiss Meditec AG
发明人： Matthew J. EVERETT , Tilman SCHMOLL , Nathan SHEMONSKI , Alexandre R. TUMLINSON
IPC分类号： G01B9/02 , A61B3/10 , A61B3/12 , A61B3/15
CPC分类号： G01B9/02091 , A61B3/102 , A61B3/1225 , A61B3/152 , G01B9/02017 , G01B9/02028 , G01B9/02061 , G01B9/02087
摘要： Various systems and methods for sequential angle illumination to achieve ultra-high resolution optical coherence tomography (OCT) images. One example OCT system includes a light source, a beam divider, sample arm optics, a detector, and a processor. The light source generates a light beam to illuminate the sample. The beam divider separates the light beam into reference and sample arms. The sample arm optics sequentially illuminates a location in the sample with the light beam from different angles. The detector receives light returned from the reference arm and the sample illuminated at each angle and generates signals. The processor combines the signals to generate an image, which has a transverse resolution that is higher than the transverse resolution achieved from the signal generated from a single angle.

8. 发明授权

US09549671B2 Optical coherence tomography system with multiple sample paths 有权
标题翻译：具有多个采样路径的光学相干断层扫描系统
公开(公告)号：US09549671B2
公开(公告)日：2017-01-24
申请号：US14601945
申请日：2015-01-21
申请人： SANTEC CORPORATION
发明人： Changho Chong
IPC分类号： A61B3/10 , A61B3/14 , G01B9/02
CPC分类号： A61B3/102 , G01B9/02004 , G01B9/02017 , G01B9/02019 , G01B9/02021 , G01B9/02028 , G01B9/02091
摘要： Improved optical coherence tomography (OCT) imaging systems are generally described. In an example, an OCT imaging system includes a tunable laser source, an interferometer, a splitter, and a detector. The tunable laser source is configured to provide a wavelength-scanned beam. The interferometer is configured to split the wavelength-scanned beam into a reference beam and an object beam. The splitter is configured to split the object beam into a first path corresponding to an anterior chamber imaging component and a second path corresponding to a retinal imaging component. The detector is configured to detect a signal caused by interference between the reference beam and at least a portion of the object beam reflected from the eye.
摘要翻译：通常描述改进的光学相干断层扫描（OCT）成像系统。在一个示例中，OCT成像系统包括可调谐激光源，干涉仪，分离器和检测器。可调激光源被配置成提供波长扫描光束。干涉仪被配置为将波长扫描的光束分成参考光束和物体光束。分离器被配置为将物体光束分成对应于前房成像部件的第一路径和对应于视网膜成像部件的第二路径。检测器被配置为检测由参考光束与从眼睛反射的物体光束的至少一部分之间的干涉引起的信号。

9. 发明授权

US06188482B1 Apparatus for electronic speckle pattern interferometry 有权
标题翻译：电子散斑图案干涉测量仪
公开(公告)号：US06188482B1
公开(公告)日：2001-02-13
申请号：US09363494
申请日：1999-07-29
申请人： Gary L. Cloud
发明人： Gary L. Cloud
IPC分类号： G01B902
CPC分类号： G01B9/0201 , G01B9/02007 , G01B9/02017 , G01B9/02095 , G01B9/02096 , G01B2290/70
摘要： Presented is a speckle interferometer for measuring displacement of an optically irregular surface of a specimen having, a laser for producing a beam of coherent radiation, an adjustable polarizing beam splitter for dividing the radiation into a first portion of the radiation and into a second portion of the radiation. The reflected radiation is then passed through a pair of collimating lenses onto the optically rough surface of the specimen. The reflection off of the specimen is captured by an imaging system that processes the reflection to measure strains on the surface.
摘要翻译：提出了一种用于测量具有用于产生相干辐射束的激光的样本的光学不规则表面的位移的散斑干涉仪，用于将辐射分成辐射的第一部分的可调节偏振分束器并且进入第二部分辐射。然后将反射的辐射通过一对准直透镜到样品的光学粗糙表面上。通过成像系统捕获样品的反射，该成像系统处理反射以测量表面上的应变。

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